[INFO] fetching crate mdns-resolver 0.1.0...
[INFO] checking mdns-resolver-0.1.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate mdns-resolver 0.1.0 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate mdns-resolver 0.1.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdns-resolver 0.1.0
[INFO] finished tweaking crates.io crate mdns-resolver 0.1.0
[INFO] tweaked toml for crates.io crate mdns-resolver 0.1.0 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] crate crates.io crate mdns-resolver 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-log v0.1.2
[INFO] [stderr]   Downloaded matchers v0.0.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.26
[INFO] [stderr]   Downloaded serde_json v1.0.66
[INFO] [stderr]   Downloaded addr2line v0.16.0
[INFO] [stderr]   Downloaded owo-colors v1.3.0
[INFO] [stderr]   Downloaded backtrace v0.3.61
[INFO] [stderr]   Downloaded cc v1.0.69
[INFO] [stderr]   Downloaded syn v1.0.75
[INFO] [stderr]   Downloaded sharded-slab v0.1.3
[INFO] [stderr]   Downloaded serde v1.0.128
[INFO] [stderr]   Downloaded indenter v0.3.3
[INFO] [stderr]   Downloaded tracing-serde v0.1.2
[INFO] [stderr]   Downloaded object v0.26.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.20
[INFO] [stderr]   Downloaded gimli v0.25.0
[INFO] [stderr]   Downloaded color-eyre v0.5.11
[INFO] [stderr]   Downloaded thiserror v1.0.26
[INFO] [stderr]   Downloaded instant v0.1.10
[INFO] [stderr]   Downloaded tracing-attributes v0.1.15
[INFO] [stderr]   Downloaded proc-macro2 v1.0.28
[INFO] [stderr]   Downloaded tracing-core v0.1.19
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.20
[INFO] [stderr]   Downloaded simple-dns v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffb6432f0ab6ef1c1355ca83f0fc624e6e5c52b4ab989ff12dc763820456c1a0
[INFO] running `Command { std: "docker" "start" "-a" "ffb6432f0ab6ef1c1355ca83f0fc624e6e5c52b4ab989ff12dc763820456c1a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffb6432f0ab6ef1c1355ca83f0fc624e6e5c52b4ab989ff12dc763820456c1a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb6432f0ab6ef1c1355ca83f0fc624e6e5c52b4ab989ff12dc763820456c1a0", kill_on_drop: false }`
[INFO] [stdout] ffb6432f0ab6ef1c1355ca83f0fc624e6e5c52b4ab989ff12dc763820456c1a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2479be143b6659870a739c10ce6be351a8a54c81511b95eb096e2e2836bd716c
[INFO] running `Command { std: "docker" "start" "-a" "2479be143b6659870a739c10ce6be351a8a54c81511b95eb096e2e2836bd716c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking tracing-core v0.1.19
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking simple-dns v0.2.1
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking mdns-resolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.03s
[INFO] running `Command { std: "docker" "inspect" "2479be143b6659870a739c10ce6be351a8a54c81511b95eb096e2e2836bd716c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2479be143b6659870a739c10ce6be351a8a54c81511b95eb096e2e2836bd716c", kill_on_drop: false }`
[INFO] [stdout] 2479be143b6659870a739c10ce6be351a8a54c81511b95eb096e2e2836bd716c